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Artyom0805 [142]

3 years ago

15

Which of the following situations are equal to 90%? Select all that apply. A) 18 out of 24 B) 18 out of 20 C) 36 out of 40 D) 54

out of 60 E) 81 out of 90

1 answer:

ArbitrLikvidat [17]3 years ago

8 0

Answer:

b, c, d, e

Step-by-step explanation:

a) 18/24 = 75%

b) 18/20 = 90%

c) 36/40 = 90%

d) 54/60 = 90%

e) 81/90 = 90%

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Ronch [10]

Based on the calculation, the perimeter of the horizontal cross-section is equal to 36.13 cm.

<h3>How to calculate the perimeter?</h3>

In this scenario, the resulting geometrical shape formed when the cut is made at the middle of the height of the trapezoid and then rotated is a circle.

<u>Given the following data:</u>

Minor base = 10 cm.

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From the middle, the diameter of this circle is given by:

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Now, we can calculate the perimeter:

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Perimeter = 3.142 × 11.5

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After 8 points are added to each score in a sample, the mean is found to be M= 40. What was the value for the original mean

MArishka [77]

Answer:

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Step-by-step explanation:

Here, we want to calculate the original value of the mean.

Let the number of samples be n

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kindly recall from the beginning of the solution;

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